<template>
    <el-row class="login-container" justify="center" :align="'middle'">
        <el-card style="max-width: 480px;">
            <template v-slot:header>
                <div class="card-header">
                    <img :src="imgUrl" alt="">
                </div>
            </template>
            <div class="jump-link">
                <el-link type="primary" @click="handleChange">{{ formType ? '返回登录' : '注册账号' }}</el-link>
            </div>
            <el-form 
            ref="loginFormRef"
            :model="loginFrom" 
            style="max-width: 600px" 
            class="demo-ruleForm" 
            :rules="rules">
                <el-form-item prop="userName">
                    <el-input v-model="loginFrom.userName" placeholder="手机号" :prefix-icon="UserFilled"></el-input>
                </el-form-item>
                <el-form-item prop="passWord">
                    <el-input v-model="loginFrom.passWord" type="password" placeholder="密码"
                        :prefix-icon="Lock"></el-input>
                </el-form-item>
                <el-form-item prop="validCode" v-if="formType" style="cursor: pointer;">
                    <el-input v-model="loginFrom.validCode" placeholder="验证码" :prefix-icon="Lock">
                        <template #append>
                            <span @click="countdownChange">{{ countdown.validText }}</span>
                        </template>
                    </el-input>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" :style="{width:'100%'}" @click="submitForm(loginFormRef)">
                        {{ formType ? '注册账号' : '登录' }}
                    </el-button>
                </el-form-item>
            </el-form>
        </el-card>
    </el-row>
</template>



<script setup>
import { ref, reactive, computed, toRaw } from 'vue';
import { getCode, userAuthentication,login, menuPermissions } from '../../api';
import { ElMessage } from 'element-plus';
import { UserFilled,Lock } from '@element-plus/icons-vue';
import { useRouter } from 'vue-router';
import {useStore} from 'vuex'
const imgUrl = new URL('../../../public/login-head.png', import.meta.url).href

// 表单数据
const loginFrom = reactive({
    userName: '',
    passWord: '',
    validCode: ''
})


// 切换表单(0代表登录 1代表注册)
const formType = ref(0)

// 点击切换登录和注册
const handleChange = () => {
    formType.value = formType.value ? 0 : 1
}

// 账号校验规则
const validateUser = (rules, value, callvack)=>{
    // 不能为空
    if(value=== ''){
        cancelIdleCallback(new Error('请输入账号'))
    }else{
        const phoneReg = /^1(3[0-9]|4[01456879]|5[0-35-9]|6[2567]|7[0-8]|8[0-9]|9[0-35-9])\d{8}$/
        phoneReg.test(value) ? callback() : callback(new Error('手机格式不对，请输入正确的手机号码'))
    }
}

// 密码校验
const validatePass = (rules,value,callback)=>{
    // 不能为空
    if(value === ''){
        vallback(new Error('请输入密码'))
    }else{
        const reg = /^[a-zA-Z0-9_-]{4,16}$/
        reg.test(value) ? callback() : callback(new Error('密码格式不对，需要4到16位字符，请重新输入'))
    }
}

// 表单校验
const rules = reactive({
    userName: [{ valicator: validateUser, trigger:'blur'}],
    passWord: [{ valicator: validatePass, trigger:'blur'}],
})


// 发送短信
const countdown = reactive({
    validText: '获取验证码',
    time: 60
})

let flag = false
const countdownChange = () => {
    // 如果已发送不处理
    if (flag) return

    //判断手机号是否正确
    const phoneReg = /^1(3[0-9]|4[01456879]|5[0-35-9]|6[2567]|7[0-8]|8[0-9]|9[0-35-9])\d{8}$/
    if (!loginFrom.userName || !phoneReg.test(loginFrom.userName)) {
        return ElMessage({
            message: '请检查手机号是否正确',
            type: 'warning',
        })
    }

    // 倒计时
    const time =  setInterval(() => {
        if (countdown.time < 0) {
            countdown.time = 60
            countdown.validText = `获取验证码`
            flag = false
            clearInterval(time)
        } else {
            countdown.time -= 1
            countdown.validText = `剩余${countdown.time}s`
        }
    }, 1000)
    flag = true
    getCode({ tel:loginFrom.userName }).then(({ data })=>{
        if(data.code === 10000){
            ElMessage.success('发送成功')
        }
    })
}

const router =  useRouter()
const loginFormRef = ref()
const store =useStore()

const routerList = computed(()=> store.state.menu.routerList)
// 表单提交
const submitForm = async(formEl)=>{
    if (!formEl) return
    // 手动触发校验
    await formEl.validate((valid,fields) =>{
        if(valid){
            // 注册页面
            if(formType.value){
                userAuthentication(loginFrom).then(({ data })=>{
                    if (data.code === 10000){
                        ElMessage.success('注册成功,请登录')
                        formType.value = 0
                    }
                })
            }
            else{
                // 登录页面
                login(loginFrom).then(({ data })=>{
                    if (data.code === 10000){
                        ElMessage.success('登录成功')
                        // 将token和用户信息缓存到浏览器
                        localStorage.setItem('pz_token',data.data.token)
                        localStorage.setItem('pz_userInfo',JSON.stringify(data.data.userInfo))
                        menuPermissions().then(({data})=>{
                            store.commit('dynamicMenu',data.data)
                            toRaw(routerList.value).forEach(item => {
                                router.addRoute('main',item)
                            })
                            router.push('/')
                        })
                        
                    }
                })
            }
        }else{

        }
    })
}

</script>
<style lang="less" scoped>
:deep(.el-card__header) {
    padding: 0
}

.login-container {
    height: 100%;

    .card-header {
        background-color: #899fe1;

        img {
            width: 430px;
        }
    }

    .jump-link {
        text-align: right;
        margin-bottom: 10px;
    }
}
</style>